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Finding the Fourth Proportional to 889,715.70, 1,334,573.55 and 534,546.90

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Solution

The fourth proportional to 889,715.70, 1,334,573.55 and 534,546.90 is: 801,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,715.70 : 1,334,573.55 = 534,546.90 : x
  2. Step 2: Convert to fraction form
    889,715.70/1,334,573.55 = 534,546.90/x
  3. Step 3: Cross multiply
    889,715.70x = 1,334,573.55 × 534,546.90
  4. Step 4: Simplify right side
    889,715.70x = 713,392,153,974.50
  5. Step 5: Solve for x
    x = 713,392,153,974.50/889,715.70
  6. Step 6: Final answer
    x = 801,820.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.